Definitions

1. noun

A person who proposes a theory or idea, especially one that is considered radical or unconventional.

“Galileo Galilei was often referred to as the new Copernicus due to his revolutionary ideas about the solar system.”

2. proper noun

Nicolaus Copernicus, a Polish astronomer and mathematician who developed the heliocentric model of the universe.

“Copernicus’s work on the heliocentric model was a major breakthrough in the field of astronomy.”